Headlight beam adjustment HBA 01 911 Turbo (996)94 · Work instruction

Headlight beam adjustment HBA 01 911 Turbo (996)94 Work instruction Display OK If not OK 5 Check 5 V supply lead ♦Switch off ignition ∞ Ω Repair wiring har- for short to ground Continue with 6 ness ♦Pull plug off the control module End for HBA ♦Measure resistance between the plug on the control module for HBA pin 14 and ground 6 Check 5 V supply lead ♦Switch ignition on 0 V Repair wiring har- for short to B+ Continue with 7 ness ♦Measure voltage between the End plug on the control module for HBA pin 14 and ground 7 Check 5 V supply lead ♦Switch off ignition < 5 Ω Repair wiring har- for open circuit Continue with 13 ness ♦Measure resistance between End the plug on the control module for HBA pin 14 and the plug on the angle sensor for HBA, rear, pin 5 8 Check ground lead of the ♦Measure resistance between < 5 Ω Repair wiring har- sensor for open circuit the plug on the control module Continue with 13 ness for HBA pin 17 and the plug on End the angle sensor for HBA pin 1 9 Check signal wire of the ♦Pull plug off the control module ∞ Ω Repair wiring har- sensor for short to for HBA Continue with 10 ness ground End ♦Measure resistance between the plug on the control module for HBA pin 13 and ground ♦Measure resistance between the plug on the control module for HBA pin 13 and pin 17 10 Check signal wire of the ♦Switch ignition on 0 V Repair wiring har- sensor for short to B+ Continue with 11 ness ♦Measure voltage at the plug on End the control module for HBA pin 13 and ground 11 Check signal wire of the ♦Switch off ignition < 5 Ω Repair wiring har- sensor for open circuit Continue with 13 ness ♦Measure resistance between End the plug on the control module for HBA pin 13 and the plug on the angle sensor for HBA, rear, pin 5 12 ♦Replace angle sensor for HBA, rear 13 ♦Replace control module for HBA 94-10 page 2 9492 Fault code 4 4xxxlw01 Printed in Germany, 2001